// --------------------------------------------------------------------------------------------------------------------
// <copyright file="NativeMethods.cs" company="Microsoft Corporation">
// The MIT License (MIT)
// 
// Copyright (c) 2014, Microsoft Corporation
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
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//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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//  THE SOFTWARE.
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// --------------------------------------------------------------------------------------------------------------------
namespace Microsoft.Robotics.Runtime
{
    using System;
    using System.Runtime.InteropServices;

    /// <summary>
    /// Class containing native methods.
    /// </summary>
    internal class NativeMethods
    {
        /// <summary>
        /// Delegate definition for the API callback
        /// </summary>
        /// <param name="timerID">The identifier of the timer. The identifier is returned by the timeSetEvent function.</param>
        /// <param name="msg">The parameter is not used.</param>
        /// <param name="userCtx">The value that was specified for the parameter of the timeSetEvent function.</param>
        /// <param name="dw1">The parameter is not used.</param>
        /// <param name="dw2">The parameter is not used.</param>
        internal delegate void TimerDelegate(uint timerID, uint msg, UIntPtr userCtx, UIntPtr dw1, UIntPtr dw2);

        [DllImport("winmm.dll", SetLastError = true, EntryPoint = "timeSetEvent")]
        internal static extern uint TimeSetEvent(uint delay, uint resolution, TimerDelegate handler, ref uint userCtx, uint eventType);

        [DllImport("winmm.dll", SetLastError = true, EntryPoint = "timeKillEvent")]
        internal static extern uint TimeKillEvent(uint timerEventId);
    }
}
